Power extending board and power supply system and electronic device using same

ABSTRACT

An exemplary electronic device includes a mother board, a power source, and a power extending board detachably connected between the power source and the motherboard. The power source includes a golden finger interface. The power extending board includes a receiving socket, a first conversion circuit, and a first connector. The golden finger interface is plugged into the receiving socket. The first conversion circuit is connected to the receiving socket, converts first and second voltages from the power source into third and fourth voltages, and outputs the first, third, and fourth voltages to the motherboard.

BACKGROUND

1. Technical Field

The present disclosure relates to a power extending board, a powersupply system using the power extending board, and an electronic deviceusing the power supply system.

2. Description of Related Art

A power supply converts an alternating current (AC) voltage into adirect current (DC) voltage to supply power to electronic devices. Apower interface of the power supply includes a cable interface and agolden finger interface. The cable interface is configured to connect toa motherboard having a standard power interface of the electronicdevice. However, the golden finger interface is configured to connect toa motherboard having a golden finger interface of the electronic device,but cannot connect to the motherboard having the standard powerinterface. Accordingly, use of the power supply having the golden fingerinterface is limited.

Therefore, what is needed is an item that can overcome the describedlimitations.

BRIEF DESCRIPTION OF THE DRAWINGS

The FIGURE is a schematic structural diagram illustrating one embodimentof an electronic device according to the present disclosure.

DETAILED DESCRIPTION

Reference will now be made to the drawings to describe specificexemplary embodiments of the present disclosure.

In order to express electrical connections between electronic componentsclearly, broken lines are used to designate plug connections between twoconnectors or two power interfaces, and solid lines are used todesignate electrical connections between other electrical components inthe FIGURE.

The FIGURE is a schematic structural diagram illustrating one embodimentof an electronic device 100. The electronic device 100 includes a powersupply system 10, a motherboard 20, a fan 30, a first data line 40, asecond data line 50, a third data line 60, and a fourth data line 70.The power supply system 10 is detachably connected to the motherboard 20via the first, second, and third data lines 40, 50, 60. The fan 30 isdetachably connected to the power supply system 10 via the fourth dataline 70. The power supply system 10 is configured to supply electricalpower to the motherboard 20 and the fan 30. In addition, the powersupply system 10 is configured to relay a first control signal from themotherboard 20 to the fan 30 and relay a feedback signal from the fan 30to the motherboard 20. The first control signal controls a rotationalspeed of the fan 30. The feedback signal represents an instantaneousrotational speed of the fan 30. The motherboard 20 processes variousdata signals and executes corresponding functions. The motherboard 20includes a plurality of connectors (not labeled) located thereon. Thefan 30 dissipates heat generated by the motherboard 20. The first,second, and third data lines 40, 50, 60 each include a cable (notlabeled) and two connectors (not labeled) connected to two ends of thecable, respectively. The fourth data line 70 includes a cable (notlabeled) and a connector (not labeled). One end of the cable of thefourth data line 70 is connected to the fan 30, and the other end of thecable of the fourth data line 70 is connected to the connector of thefourth data line 70.

The power supply system 10 includes a power source 11 and a powerextending board 12 detachably connected to the power source 11. Thepower source 11 includes an alternating current-direct current (AC-DC)voltage conversion circuit 11 a and a golden finger interface 11 bconnected to the AC-DC voltage conversion circuit 11 a. The AC-DCvoltage conversion circuit 11 a receives AC voltage from an external ACpower source (not shown) and converts the received AC voltage into DCvoltages. The DC voltages include a first voltage and a second voltage.In the present embodiment, both the first and second voltages are 12volts (V). In this embodiment, the second voltage is generated prior tothe first voltage. Once the power source 11 is connected to the externalAC power source, the power source 11 first generates the second voltage,so as to initialize the electronic device 100. When the electronicdevice 100 is started up and running normally, the power source 11generates the first voltage, so as to drive the electronic device 100.In alternative embodiments, the first voltage and the second voltage maybe different from each other.

The power extending board 12 includes a receiving socket 12 a, a firstconversion circuit 12 b, a second conversion circuit 12 c, a firstconnector 12 d, two second connectors 12 e, a third connector 12 f, afourth connector 12 g, and a substrate 12 h. The receiving socket 12 a,the first conversion circuit 12 b, the second conversion circuit 12 c,the first connector 12 d, the second connectors 12 e, the thirdconnector 12 f, and the fourth connector 12 g are located on thesubstrate 12 h.

The receiving socket 12 a is connected to the first conversion circuit12 b. The golden finger interface 11 b is plugged into the receivingsocket 12 a. The first conversion circuit 12 b is connected to the AC-DCvoltage conversion circuit 11 a via the receiving socket 12 a and thegolden finger interface 11 b plugged into the receiving socket 12 a.

The first connector 12 d includes three first conductive pins 123. Oneend of each of the three first conductive pins 123 is connected to thefirst conversion circuit 12 b, and the other end of each of the threefirst conductive pins 123 is detachably connected to the motherboard 20via the first data line 40. Each of the second connectors 12 e includesa second conductive pin 124. One end of each of the second conductivepins 124 is connected to the first conversion circuit 12 b, and theother end of each of the second conductive pins 124 is detachablyconnected to the motherboard 20 via the second data line 50. The thirdconnector 12 f includes a third conductive pin 125 and a fourthconductive pin 126. The fourth connector 12 g includes a fifthconductive pin 127, a sixth conductive pin 128, and a seventh conductivepin 129. One end of the third conductive pin 125 is connected to one endof the fifth conductive pin 127 via the second conversion circuit 12 c,and the other end of the third conductive pin 125 is detachablyconnected to the motherboard 20 via the third data line 60. The otherend of the fifth conductive pin 127 is connected to the fan 30 via thefourth data line 70. One end of the fourth conductive pin 126 isdetachably connected to the motherboard 20 via the third data line 60,and the other end of the fourth conductive pin 126 is connected to oneend of the sixth conductive pin 128. The other end of the sixthconductive pin 128 is detachably connected to the fan 30 via the fourthdata line 70. One end of the seventh conductive pin 129 is connected tothe first conversion circuit 12 b, and the other end of the seventhconductive pin 129 is detachably connected to the fan 30 via the fourthdata line 70.

The first conversion circuit 12 b receives the first voltage and thesecond voltage from the power source 11, converts the first voltage intoa third voltage, converts the second voltage into a fourth voltage,outputs the first voltage, the third voltage, and the fourth voltage tothe first connector 12 d, and outputs the first voltage to the secondconnectors 12 e and the fourth connector 12 g. The three firstconductive pins 123 receive the first voltage, the third voltage, andthe fourth voltage, respectively, and output the first voltage, thethird voltage, and the fourth voltage to the motherboard 20 via thefirst data line 40, so as to supply the electrical power to themotherboard 20. In the present embodiment, the third and fourth voltagesare 5V. The fourth voltage initializes the motherboard 20. The secondconductive pins 124 receive the first voltage from the first conversioncircuit 12 b, and one of the second conductive pins 124 outputs thefirst voltage to the motherboard 20. The seventh conductive pin 129receives the first voltage from the first conversion circuit 12 b andoutputs the first voltage to the fan 30, so as to supply the electricalpower to the fan 30.

The motherboard 20 outputs the first control signal to the thirdconductive pin 125 via the third data line 60. The third conductive pin125 receives the first control signal and outputs the first controlsignal to the second conversion circuit 12 c. The second conversioncircuit 12 c converts the first control signal into a second controlsignal and outputs the second control signal to the fifth conductive pin127. The fifth conductive pin 127 receives the second control signal andoutputs the second control signal to the fan 30 via the fourth data line70. The fan 30 operates based on the second control signal and outputsthe feedback signal to the sixth conductive pin 128 via the fourth dataline 70. The sixth conductive pin 128 receives the feedback signal andoutputs the feedback signal to the motherboard 20 via the fourthconductive pin 126 and the third data line 60 in sequence. Themotherboard 20 adjusts the first control signal based on the feedbacksignal so as to dynamically adjust the rotational speed of the fan 30.In the present embodiment, the first and second control signals arepulse width modulation (PWM) signals. A high-level voltage of the firstcontrol signal is 3.3V, and the high-level voltage of the second controlsignal is 5V.

As described above, since the electronic device 100 includes the powerextending board 12, even though the power source 11 includes the goldenfinger interface 11 b, the power source 11 is detachably connected to astandard power interface of the motherboard 20 via the power extendingboard 12, the first data line 40, the second data line 50, and the thirddata line 60. Therefore, a use of the power source 11 is broadened andsimplified.

In addition, since the power extending board 12 is further detachablyconnected between the fan 30 and the motherboard 20 to relay the firstcontrol signal and the feedback signal between the fan 30 and themotherboard 20 to dynamically adjust the rotational speed of the fan 30,a connection between the fan 30 and the motherboard 20 is simplified.

It is believed that the present embodiments and their advantages will beunderstood from the foregoing description, and it will be apparent thatvarious changes may be made thereto without departing from the spiritand scope of the present disclosure or sacrificing all of its materialadvantages, the examples hereinbefore described merely being preferredor exemplary embodiments.

What is claimed is:
 1. A power extending board, configured to transfer afirst voltage and a second voltage from a power source comprising agolden finger interface to a motherboard of an electronic device, thepower extending board comprising: a substrate; a receiving socketpositioned on the substrate and detachably connected to the goldenfinger interface of the power source; a first conversion circuitpositioned on the substrate and connected to the receiving socket; thefirst conversion circuit receiving the first voltage and the secondvoltage from the power source via the golden finger interface and thereceiving socket, converting the first voltage into a third voltage,converting the second voltage into a fourth voltage; and a firstconnector positioned on the substrate, the first connector comprisingthree first conductive pins, a first end of each of the three firstconductive pins connected to the first conversion circuit, and a secondend of each of the three first conductive pins being detachablyconnected to the motherboard of the electronic device, the three firstconductive pins receiving the first, third, and fourth voltagesrespectively, and outputting the first, third, and fourth voltages tothe motherboard.
 2. The power extending board of claim 1, wherein thefourth voltage initializes the motherboard, and the third voltagediffers from the first voltage.
 3. The power extending board of claim 1,further comprising a second connector positioned on the substrate,wherein the second connector comprises a second conductive pin; a firstend of the second conductive pin is connected to the first conversioncircuit, and a second end of the second conductive pin is detachablyconnected to the motherboard; the second conductive pin receives thefirst voltage from the first conversion circuit, and outputs the firstvoltage to the motherboard.
 4. The power extending board of claim 1,further comprising a third connector, a fourth connector, and a secondconversion circuit, wherein the third connector, the fourth connector,and the second conversion circuit are positioned on the substrate; thethird connector comprises a third conductive pin; a first end of thethird conductive pin is connected to the second conversion circuit, anda second end of the third conductive pin is detachably connected to themotherboard; the fourth connector comprises a fourth conductive pin; afirst end of the fourth conductive pin is connected to the secondconversion circuit, and a second end of the fourth conductive pin isdetachably connected to a fan; the third conductive pin receives a firstcontrol signal from the motherboard, and outputs the first controlsignal to the second conversion circuit; the second conversion circuitconverts the first control signal into a second control signal, andoutputs the second control signal to the fan via the fourth conductivepin, so as to control the rotational speed of the fan.
 5. The powerextending board of claim 4, wherein the first control signal and thesecond control signal are both power width modulation signals.
 6. Thepower extending board of claim 4, wherein the fourth connector furthercomprises a fifth conductive pin; a first end of the fifth conductivepin is connected to the first conversion circuit, and a second end ofthe fifth conductive pin is detachably connected to the fan; the fifthconductive pin receives the first voltage from the first conversioncircuit, and outputs the first voltage to the fan.
 7. The powerextending board of claim 4, wherein the third connector furthercomprises a sixth conductive pin, and the fourth connector furthercomprises a seventh conductive pin; a first end of the sixth conductivepin is connected to a first end of the seventh conductive pin, and asecond end of the sixth conductive pin is detachably connected to themotherboard; a second end of the seventh conductive pin is detachablyconnected to the fan; the seventh conductive pin receives a feedbacksignal from the fan, and outputs the feedback signal to the motherboardvia the sixth conductive pin, so as to adjust the first control signal;the feedback signal is representative of the current rotational speed ofthe fan.
 8. A power supply system configured to supply electrical powerto an electronic device comprising a motherboard, the power supplysystem comprising: a power source comprising a golden finger interfaceand outputting a first voltage and a second voltage via the goldenfinger interface; and a power extending board detachably connectedbetween the power source and the motherboard, the power extending boardcomprising: a substrate; a receiving socket positioned on the substrateand detachably connected to the golden finger interface; a firstconversion circuit positioned on the substrate and connected to thereceiving socket, the first conversion circuit receiving the firstvoltage and the second voltage from the power source via the goldenfinger interface and the receiving socket, converting the first voltageinto a third voltage, converting the second voltage into a fourthvoltage, and outputting the first, third, and fourth voltages; and afirst connector positioned on the substrate, comprising three firstconductive pins, a first end of each of the three first conductive pinsconnected to the first conversion circuit, and a second end of each ofthe three first conductive pins detachably connected to the motherboard,the three first conductive pins receiving the first, third, and fourthvoltages respectively, and outputting the first, third, and fourthvoltages to the motherboard.
 9. The power supply system of claim 8,wherein the fourth voltage initializes the motherboard, and the thirdvoltage differs from the first voltage.
 10. The power supply system ofclaim 8, wherein the power extending board further comprises a secondconnector positioned on the substrate; the second connector comprises asecond conductive pin; a first end of the second conductive pin isconnected to the first conversion circuit, and a second end of thesecond conductive pin is detachably connected to the motherboard; thesecond conductive pin receives the first voltage from the firstconversion circuit, and outputs the first voltage to the motherboard.11. The power supply system of claim 8, wherein the power extendingboard further comprises a third connector, a fourth connector, and asecond conversion circuit; the third connector, the fourth connector,and the second conversion circuit are positioned on the substrate; thethird connector comprises a third conductive pin; a first end of thethird conductive pin is connected to the second conversion circuit, anda second end of the third conductive pin is detachably connected to themotherboard; the fourth connector comprises a fourth conductive pin; afirst end of the fourth conductive pin is connected to the secondconversion circuit, and a second end of the fourth conductive pin isdetachably connected to a fan; the third conductive pin receives a firstcontrol signal from the motherboard, and outputs the first controlsignal to the second conversion circuit; the second conversion circuitconverts the first control signal into a second control signal, andoutputs the second control signal to the fan via the fourth conductivepin, so as to control the rotational speed of the fan.
 12. The powersupply system of claim 11, wherein the first control signal and thesecond control signal are both power width modulation signals.
 13. Thepower supply system of claim 11, wherein the fourth connector furthercomprises a fifth conductive pin; a first end of the fifth conductivepin is connected to the first conversion circuit, and a second end ofthe fifth conductive pin is detachably connected to the fan; the fifthconductive pin receives the first voltage from the first conversioncircuit, and outputs the first voltage to the fan.
 14. The power supplysystem of claim 11, wherein the third connector further comprises asixth conductive pin, and the fourth connector further comprises aseventh conductive pin; a first end of the sixth conductive pin isconnected to a first end of the seventh conductive pin, and a second endof the sixth conductive pin is detachably connected to the motherboard;a second end of the seventh conductive pin is detachably connected tothe fan; the seventh conductive pin receives a feedback signal from thefan, and outputs the feedback signal to the motherboard via the sixthconductive pin, so as to adjust the first control signal; the feedbacksignal is representative of the current rotational speed of the fan. 15.An electronic device, comprising: a motherboard; and a power supplysystem, comprising: a power source, comprising a golden fingerinterface, and outputting a first voltage and a second voltage via thegolden finger interface; and a power extending board detachablyconnected between the power source and the motherboard, the powerextending board comprising: a substrate; a receiving socket positionedon the substrate, and detachably connected to the golden fingerinterface; a first conversion circuit positioned on the substrate, andconnected to the receiving socket, the first conversion circuitreceiving the first voltage and the second voltage from the power sourcevia the first, second conductive pins, converting the first voltage intoa third voltage, converting the second voltage into a fourth voltage,and outputting the first, third, and fourth voltages; and a firstconnector positioned on the substrate, comprising three first conductivepins, a first end of each of the three first conductive pins connectedto the first conversion circuit, and a second end of each of the threefirst conductive pins detachably connected to the motherboard, the threefirst conductive pins receiving the first, third, and fourth voltagesrespectively, and outputting the first, third, and fourth voltages tothe motherboard.
 16. The electronic device of claim 15, wherein thepower extending board further comprises a second connector positioned onthe substrate; the second connector comprises a second conductive pin; afirst end of the second conductive pin is connected to the firstconversion circuit, and a second end of the second conductive pin isdetachably connected to the motherboard; the second conductive pinreceives the first voltage from the first conversion circuit, andoutputs the first voltage to the motherboard.
 17. The power supplysystem of claim 15, further comprising a fan, wherein the powerextending board further comprises a third connector, a fourth connector,and a second conversion circuit; the third connector, the fourthconnector, and the second conversion circuit are positioned on thesubstrate; the third connector comprises a third conductive pin; a firstend of the third conductive pin is connected to the second conversioncircuit, and a second end of the third conductive pin is detachablyconnected to the motherboard; the fourth connector comprises a fourthconductive pin; a first end of the fourth conductive pin is connected tothe second conversion circuit, and a second end of the fourth conductivepin is detachably connected to the fan; the third conductive pinreceives a first control signal from the motherboard, and outputs thefirst control signal to the second conversion circuit; the secondconversion circuit converts the first control signal into a secondcontrol signal, and outputs the second control signal to the fan via thefourth conductive pin, so as to control the rotational speed of the fan.18. The power supply system of claim 17, wherein the first controlsignal and the second control signal are both power width modulationsignals.
 19. The power supply system of claim 17, wherein the fourthconnector further comprises a fifth conductive pin; a first end of thefifth conductive pin is connected to the first conversion circuit, and asecond end of the fifth conductive pin is detachably connected to thefan; the fifth conductive pin receives the first voltage from the firstconversion circuit, and outputs the first voltage to the fan.
 20. Thepower supply system of claim 17, wherein the third connector furthercomprises a sixth conductive pin, and the fourth connector furthercomprises a seventh conductive pin; a first end of the sixth conductivepin is connected to a first end of the seventh conductive pin, and asecond end of the sixth conductive pin is detachably connected to themotherboard; a second end of the seventh conductive pin is detachablyconnected to the fan; the seventh conductive pin receives a feedbacksignal from the fan, and outputs the feedback signal to the motherboardvia the sixth conductive pin, so as to adjust the first control signal;the feedback signal is representative of the current rotational speed ofthe fan.